In iconv/gconv_conf.c, __gconv_get_path unnecessarily obtains a lock when
populating the array pointed to by __gconv_path_elem. The locking is not
necessary because all calls to __gconv_read_conf (which in turn calls
__gconv_get_path) are serialized using __libc_once.
This patch:
- removes all locking in __gconv_get_path;
- replaces all explicitly serialized __gconv_read_conf calls with calls to
__gconv_load_conf, a new wrapper that is serialized internally;
- adds a new test, iconv/tst-iconv_mt.c, to exercise iconv initialization,
usage, and cleanup in a multi-threaded program;
- indents __gconv_get_path correctly, removing tab characters (which makes
the patch look a little bigger than it really is).
After removing the unnecessary locking, it was confirmed that the test case
fails if the relevant __libc_once is removed. Additionally, four localedata
and iconvdata tests also fail. This gives confidence that the testsuite
sufficiently guards against some regressions relating to multi-threading
with iconv.
Tested on x86_64 and i686.
* iconv/gconv_cache.c (__gconv_lookup_cache): Return __GCONV_NULCONV
if from and to charsets are the same.
* iconv/gconv_db.c (__gconv_find_transform): Likewise.
* intl/dcigettext.c (_nl_find_msg): Return NULL even if __gconv_open
returns __GCONV_NOCONV, but not for __GCONV_NULCONV.
2007-07-17 Jakub Jelinek <jakub@redhat.com>
* wcsmbs/wchar.h: Only define wint_t if __need_wint_t.
Don't define wint_t when __need_mbstate_t unless it
is necessary.
(__mbstate_t): Use __WINT_TYPE__ rather than wint_t
in the typedef if possible.
* wctype/wctype.h (wint_t): Define by including
wchar.h with __need_wint_t instead of including stddef.h
with __need_wint_t and as fallback definining it ourselves.
* iconv/gconv.h (__need_wint_t): Define before including
wchar.h.
* sysdeps/gnu/_G_config.h: Don't include gconv.h if not _LIBC
or _GLIBCPP_USE_WCHAR_T.
(__need_wchar_t): Don't define
if not _LIBC or _GLIBCPP_USE_WCHAR_T.
(__need_wint_t): Don't define before including stddef.h,
define before including wchar.h only if _LIBC or
_GLIBCPP_USE_WCHAR_T.
(_G_iconv_t): Don't define if not _LIBC or _GLIBCPP_USE_WCHAR_T.
* sysdeps/mach/hurd/_G_config.h: Likewise.
* sysdeps/generic/_G_config.h: Likewise.
* libio/libio.h (__wunderflow, __wuflow, __woverflow): Only
prototype if _LIBC or _GLIBCPP_USE_WCHAR_T.
(_IO_getwc_unlocked, _IO_putwc_unlocked): Only define
if _LIBC or _GLIBCPP_USE_WCHAR_T.
* iconv/gconv_db.c: Don't define lock as static. Rename to
__gconv_lock and export from the file.
* iconv/gconv_int.h: Declare __gconv_lock.
* libio/iofclose.c [_LIBC] (_IO_new_fclose): Lock gconv lock
before __gconv_release_step calls.
Patch by Shunichi Sagawa <s-sagawa@jp.fujitsu.com>.
* iconv/gconv_simple.c (internal_ucs4_loop): Fix typo in last change.
* iconv/gconv_db.c
2002-11-30 Bruno Haible <bruno@clisp.org>
* iconv/gconv.h (__gconv_btowc_fct): New typedef.
(struct __gconv_step): New field __btowc_fct.
* wcsmbs/btowc.c (__btowc): Use the __btowc_fct shortcut if possible.
* iconv/gconv_int.h (__BUILTIN_TRANSFORM): Renamed from
__BUILTIN_TRANS.
(__gconv_btwoc_ascii): New declaration.
* iconv/gconv_simple.c (BUILTIN_TRANSFORMATION): Add BtowcFct argument.
(__gconv_btwoc_ascii): New function.
* iconv/gconv_builtin.h: Add BtowcFct argument to all
BUILTIN_TRANSFORMATION invocations.
* iconv/gconv_conf.c (BUILTIN_TRANSFORMATION): Add BtowcFct argument.
* iconv/iconvconfig.c (BUILTIN_TRANSFORMATION): Likewise.
* iconv/gconv_builtin.c (map): New field btowc_fct.
(BUILTIN_TRANSFORMATION): Add BtowcFct argument. Use it to initialize
btowc_fct field.
(__gconv_get_builtin_trans): Initialize __btowc_fct field.
* iconv/gconv_cache.c (find_module): Initialize __btowc_fct field.
* iconv/gconv_db.c (gen_steps, increment_counter): Likewise.
* wcsmbs/wcsmbsload.c (to_wc, to_mb): Likewise.
* iconv/skeleton.c: Document STORE_REST and FROM_ONEBYTE.
(gconv_init): Initialize __btowc_fct field.
Undefine EXTRA_LOOP_ARGS and FROM_ONEBYTE at the end.
* iconv/loop.c: Document ONEBYTE_BODY.
(gconv_btowc, FROM_ONEBYTE): Define if ONEBYTE_BODY is defined.
Undefine ONEBYTE_BODY at the end.
* iconvdata/8bit-generic.c (ONEBYTE_BODY): New macro.
* iconvdata/8bit-gap.c (NONNUL): New macro.
(BODY for FROM_LOOP): Use it.
(ONEBYTE_BODY): New macro.
* iconvdata/isiri-3342.c (HAS_HOLES): Set to 1.
(NONNUL): New macro.
* iconvdata/ansi_x3.110.c (ONEBYTE_BODY): New macro.
* iconvdata/armscii-8.c (ONEBYTE_BODY): New macro.
* iconvdata/cp1255.c (ONEBYTE_BODY): New macro.
* iconvdata/cp1258.c (ONEBYTE_BODY): New macro.
* iconvdata/tcvn5712-1.c (ONEBYTE_BODY): New macro.
* iconvdata/big5.c (ONEBYTE_BODY): New macro.
* iconvdata/big5hkscs.c (ONEBYTE_BODY): New macro.
* iconvdata/euc-cn.c (ONEBYTE_BODY): New macro.
* iconvdata/euc-jp.c (ONEBYTE_BODY): New macro.
* iconvdata/euc-jisx0213.c (ONEBYTE_BODY): New macro.
* iconvdata/euc-kr.c (ONEBYTE_BODY): New macro.
* iconvdata/euc-tw.c (ONEBYTE_BODY): New macro.
* iconvdata/gbk.c (ONEBYTE_BODY): New macro.
* iconvdata/gb18030.c (ONEBYTE_BODY): New macro.
* iconvdata/ibm932.c: Include <stdbool.h>.
(TRUE, FALSE): Remove macros.
(BODY for FROM_LOOP): Remove unused variable rp1.
(ONEBYTE_BODY): New macro.
(BODY for TO_LOOP): Use bool.
* iconvdata/ibm932.h (__ibm932sb_to_ucs4_idx): Remove array.
* iconvdata/ibm943.c: Include <stdbool.h>.
(TRUE, FALSE): Remove macros.
(BODY for FROM_LOOP): Remove unused variable rp1.
(ONEBYTE_BODY): New macro.
(BODY for TO_LOOP): Use bool.
* iconvdata/ibm943.h (__ibm943sb_to_ucs4_idx): Remove array.
* iconvdata/iso8859-1.c (ONEBYTE_BODY): New macro.
* iconvdata/iso_6937-2.c (ONEBYTE_BODY): New macro.
* iconvdata/iso_6937.c (ONEBYTE_BODY): New macro.
* iconvdata/johab.c (ONEBYTE_BODY): New macro.
* iconvdata/sjis.c (ONEBYTE_BODY): New macro.
* iconvdata/shift_jisx0213.c (ONEBYTE_BODY): New macro.
* iconvdata/t.61.c (ONEBYTE_BODY): New macro.
* iconvdata/uhc.c (ONEBYTE_BODY): New macro.
* iconvdata/gbbig5.c: Tweak comment.
2002-08-04 Ulrich Drepper <drepper@redhat.com>
* stdio-common/psignal.c: Declare _sys_siglist_internal. Use USEINT
to access _sys_siglist.
* string/strsignal.c: Likewise.
* sysdeps/generic/siglist.c: Add _sys_siglist_internal alias.
* sysdeps/gnu/siglist.c: Likewise.
* sysdeps/unix/siglist.c: Likewise.
* sysdeps/unix/sysv/linux/arm/siglist.c: Likewise.
* libio/fileops.c: Add missing INTUSEs for _IO_file_jumps.
* libio/wfileops.c: Add missing INTUSE for _IO_file_close.
* intl/dcigettext.c: Define _nl_default_dirname_internal as hidden
alias and use it.
* intl/bindtextdom.c: Use _nl_default_dirname_internal.
* include/netinet/in.h: Add declaration of in6addr_loopback_internal.
* inet/in6_addr.c: Add INTVARDEF for in6addr_loopback.
* sysdeps/posix/getaddrinfo.c: Use INTUSE for in6addr_loopback access.
* include/time.h: Add libc_hidden_proto for __gmtime_r.
* time/gmtime.c (__gmtime_r): Add libc_hidden_def.
* iconv/Versions: Replace __gconv_alias_db, __gconv_modules_db,
and __gconv_cache with __gconv_get_alias_db, __gconv_get_modules_db,
and __gconv_get_cache respectively.
* iconv/gconv_cache.c (gconv_cache): Renamed for __gconv_cache and
defined static. Change all users.
(__gconv_get_cache): New function.
* iconv/gconv_db.c (__gconv_get_modules_db): New function.
(__gconv_get_alias_db): New function.
* iconv/gconv_int.h (__gconv_alias_db): Declare as hidden.
(__conv_modules_db): Likewise.
Add prototypes for __gconv_get_cache, __gconv_get_modules_db,
and __gconv_get_alias_db.
* iconv/iconv_prog.c: Use the new functions instead of accessing the
variables.
* include/stdlib.h: Add prototype and libc_hidden_proto for
__default_morecore.
* sysdeps/generic/morecore.c: Include <stdlib.h>.
* malloc/obstack.c: Remove fputs macro.
* malloc/mtrace.c: Remove fopen macro.
* iconv/gconv_cache.c (find_module): Don't allocate room for the
filename. Use alloca, we don't need it beyond this function.
(__gconv_release_cache): New function.
* iconv/gconv_db.c (__gconv_close_transform): Call
__gconv_release_cache after the steps are handled.
* iconv/gconv_dl.c (__gconv_find_shlib): Allocate file name in the
record as well.
* iconv/gconv_int.h: Add prototype fpr __gconv_release_cache.
2001-07-22 Ulrich Drepper <drepper@redhat.com>
* iconv/gconv_builtin.c (struct builtin_map): Remove init and end
elements.
(BUILTIN_TRANSFORMATION): Remove Init and End parameters.
(__gconv_get_builtin_trans): Initialize __init_fct and __end_fct to
NULL.
* iconv/gconv_builtin.h: Remove NULL parameters for Init and End in
all BUILTIN_TRANSFORMATION calls.
* iconv/gconv_conf.c (BUILTIN_TRANSFORMATION): Remove Init and End
parameters.
* iconv/gconv_simple.c: Likewise.
* iconv/gconv_db.c (gen_steps): Internal converters don't have
initializers, move the code accordingly.
* iconv/gconv_conf.c (__gconv_read_conf): Don't read configuration
file if STATIC_GCONV is defined.
* iconv/gconv_conf.c (__gconv_path_envvar): New global variable.
(__gconv_get_path): Use it instead of call getenv.
(__gconv_read_conf): First see whether cache can be used. If yes,
don't do any work here.
* iconv/gconv_db.c (__gconv_release_step): Renamed from release_step
and exported. Change callers.
(__gconv_find_transform): First call __gconv_lookup_cache and only
continue if it signals no cache available. Remove some unnecessary
tests.
* iconv/gconv_int.h: Declare __gconv_path_envvar, __gconv_lookup_cache,
__gconv_release_step, and __gconv_loaded_cache.
* iconv/gconv_cache.c: New file.
* iconv/iconvconfig.c: New file.
* iconv/iconvconfig.h: New file.
* iconv/strtab.c: New file.
* iconv/Makefile: Add rules to build new files and programs.
2001-07-06 Paul Eggert <eggert@twinsun.com>
* manual/argp.texi: Remove ignored LGPL copyright notice; it's
not appropriate for documentation anyway.
* manual/libc-texinfo.sh: "Library General Public License" ->
"Lesser General Public License".
2001-07-06 Andreas Jaeger <aj@suse.de>
* All files under GPL/LGPL version 2: Place under LGPL version
2.1.
options after $(build-module), which is no longer a single command.
(LDFLAGS-link-rpcuserlibs): New variable to hold those options.
(LDFLAGS-libmachuser-link.so, LDFLAGS-libhurduser-link.so): New
variables using it. Reported by Mark Kettenis <kettenis@gnu.org>.
2001-03-11 Roland McGrath <roland@frob.com>
* elf/rtld.c (dl_main): Add cast to quiet warning.
* elf/dl-load.c (_dl_map_object_from_fd): Likewise.
* iconv/gconv_conf.c (__gconv_get_path): Likewise.
(__gconv_read_conf): Likewise.
* iconv/gconv_db.c (gen_steps): Likewise.
(__gconv_find_transform): Likewise.
* locale/programs/charmap-dir.c (fopen_uncompressed): Likewise.
(fopen_uncompressed): Use const in second argument's type.
2001-03-11 Roland McGrath <roland@frob.com>
* sysdeps/mach/hurd/dl-sysdep.c (__writev): New function.
* mach/mach_error.h: Fix ancient #endif syntax.
* hurd/hurdmalloc.c: Likewise.
* sysdeps/generic/atomicity.h (exchange_and_add, atomic_add,
compare_and_swap): Add volatile qualifier to first arg, to bring
these prototypes in line with all the other implementations.
Add a #warning to remind the builder that these are not atomic.
2001-03-04 Roland McGrath <roland@frob.com>
* hurd/vpprintf.c (vpprintf) [USE_IN_LIBIO]: Use innermore first
member of TEMP_F so its type is _IO_FILE * as expected.
* hurd/fopenport.c (seekio): Conditionalize type of POS argument
on [USE_IN_LIBIO]. Check the value for overflow, since for libio
it might exceed off_t's range.
2001-02-25 Roland McGrath <roland@frob.com>
* sysdeps/mach/hurd/sysd-stdio.c (__stdio_reopen): Use prototype.
* sysdeps/unix/bsd/getpt.c (__posix_openpt): Likewise.
* sysdeps/mach/hurd/i386/intr-msg.h (SYSCALL_EXAMINE): Make this a
macro instead of an inline function,
(MSG_EXAMINE): Likewise.
* hurd/hurd/ioctl.h (_HURD_HANDLE_IOCTLS_1): Remove extraneous ##.
* hurd/get-host.c: Include <string.h> for decls of built-ins.
* hurd/hurdchdir.c: Likewise.
* sysdeps/mach/hurd/i386/sigreturn.c: Likweise.
* sysdeps/mach/hurd/opendir.c: Likewise.
* mach/mach_init.c: Include <unistd.h> for _exit decl.
* mach/errsystems.awk: Give output file a trailing newline.
* mach/Machrules (MIG): Prepend CC='${CC}' to the mig command, so that
the script will use our compiler for the cpp stage.
With --enable-all-warnings we get a whole bunch of warnings,
and these are just a few fixes; there are more needed to silence it.
* mach/mach/mig_support.h (__mig_strncpy, mig_strncpy): Add extern
decls before extern inline defns to quiet gcc warning.
* hurd/hurd/threadvar.h (__hurd_threadvar_location_from_sp): Likewise.
* sysdeps/mach/i386/machine-sp.h (__thread_stack_pointer): Likewise.
2000-08-29 Akira Higuchi <a@kondara.org>
* iconv/gconv_db.c (increment_counter): Reset __init_fct, __fct,
and __end_fct fields of struct __gconv_step.
* iconv/Makefile (tests): Add iconv-bug2.
* iconv/iconv-bug2.c: New file.
* iconvdata/euc-kr.c (BODY for FROM_LOOP): Pass 'inend - inptr'
instead of 'inptr - inend' to ksc5601_to_ucs4.
* iconvdata/sjis.c (BODY for FROM_LOOP): Allow 0x7f character.
* iconvdata/iso-2022-cn.c (BODY for FROM_LOOP): If an incomplete
character or shift sequence is found at the end of the input
string, return__GCONV_INCOMPLETE_INPUT instead of
__GCONV_EMPTY_INPUT.
* iconvdata/iso-2022-jp.c (BODY for FROM_LOOP): Likewise.
* iconvdata/iso-2022-kr.c (BODY for FROM_LOOP): Likewise.
* iconvdata/iso-2022-jp.c (BODY for FROM_LOOP): Return
__GCONV_ILLEGAL_INPUT for 8bit characters.
* iconv/gconv_int.h (strict gconv_module): Remove all members
associated with regular expressions. Use a simple string as the
from name.
* iconv/gconv_db.c: Remove code handling regular expressions.
* iconv/gconv_conf.c: Likewise.
* iconv/iconv_prog.c: Likewise.
* iconv/gconv_builtin.h: Adjust for change in gconv_conf.c.
1999-12-07 Ulrich Drepper <drepper@cygnus.com>
* iconv/gconv_db.c (gen_steps): Set __counter initialy to 1.
(increment_counter): New function. Broken out of find_derivation.
(find_derivation): No need for a lock. Increment counter only when
the derivation was already available.
* iconv/gconv_dl.c: Add debugging functions.
(known_compare): We have to use strcmp.
* sysdeps/gnu/Makefile (libdl-routines): Add eval.
1999-07-06 Zack Weinberg <zack@rabi.columbia.edu>
* dlfcn: New directory. Move the following files from elf:
dladdr.c, dlclose.c, dlerror.c, dlfcn.h, dlopen.c,
dlopenold.c, dlsym.c, dlvsym.c.
* dlfcn/Makefile: New file.
* dlfcn/Versions: New file.
* dlfcn/dlsym.c: All ELF-specific code split out to new
function _dl_sym.
* dlfcn/dlvsym.c: All ELF-specific code split out to new
function _dl_vsym.
* elf/dl-sym.c: New file. _dl_sym and _dl_vsym are
implemented here.
* dlfcn/dladdr.c: Remove all references to ELF data structures
or headers.
* dlfcn/dlclose.c: Likewise.
* dlfcn/dlerror.c: Likewise.
* dlfcn/dlopen.c: Likewise.
* dlfcn/dlopenold.c: Likewise.
* Makeconfig (dlfcn): New variable - set to `dlfcn' if elf is
yes, empty otherwise.
(libdl): Set to dlfcn/libdl.so or libdl.a if elf is yes,
depending on build-shared.
(subdirs): Add $(dlfcn).
(rpath-dirs): Add dlfcn.
* elf/Makefile: Remove all references to libdl or its
components, except the ones relating to the test cases.
(routines): Add dl-sym.
* elf/Versions (libc): Add _dl_sym and _dl_vsym for GLIBC_2.2.
(libdl): Delete.
* elf/dl-close.c (_dl_close): Change argument to void *.
* elf/dl-open.c (_dl_open): Change return type to void *.
* elf/eval.c: Removed.
* elf/ldsodefs.h: Move prototypes of _dl_catch_error,
_dlerror_run, _dl_open, _dl_close, _dl_addr, and
_dl_mcount_wrapper_check to include/dlfcn.h. Delete
_CALL_DL_FCT macro.
* include/dlfcn.h: Also prototype _dl_sym and _dl_vsym here.
Include real header from dlfcn directory.
* include/ldsodefs.h: Removed.
* grp/initgroups.c: Use DL_CALL_FCT not _CALL_DL_FCT.
* nss/getXXbyYY_r.c: Likewise.
* nss/getXXent_r.c: Likewise.
* iconv/gconv.c: Likewise. Don't include ldsodefs.h.
* iconv/gconv_db.c: Likewise. Don't include ldsodefs.h.
* iconv/skeleton.c: Don't include ldsodefs.h.
* nss/nsswitch.h: Don't include ldsodefs.h. Include dlfcn.h.
1999-07-07 Ulrich Drepper <drepper@cygnus.com>
* iconv/gconv_db.c (__gconv_find_transform): If conversion is
known to not exist don't try to load shared objects.
Patch by Petr Vandrovec Ing. VTEI <VANDROVE@vc.cvut.cz>.
